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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Birthing process (termination of gestation)
Parturition
behavioral signs of estrus
sow estrus
libido test (BSE)
2. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
vagina
ewe gestation
Follical Stimulating in females
burdizzo
3. Why does estrus happen before ovulation?
effects of BST
Parturition
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
Mares
4. (switzerland) 2nd in size and milk production - most muscle -
sigmoid flexure
Brown Swiss Cow
Sperm growth rate
femininity of a heifer
5. Implies the amount of estrogen production
scrotal circumference (BSE)
femininity of a heifer
testis (gonads)
things to check for in a breeding soundness exam (BSE)
6. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
femininity of a heifer
mastitis
purpose of Breeding Soundness Exam (BSE) for males
4 major reasons for culling dairy cows
7. Sperm is produced here
Sperm growth rate
growth lost from castration methods (knife & band)
seminiferous tubules
castration
8. FEED
reasons for castration
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
#1 cost in production
Jersey Cow
9. Scar tissue plugs up chambers of udder
mare ovulation
sow gestation
1. more cost effective - 2. powdered milk is in excess production
mastitis
10. Prevent the cow from getting an infection from the calve
Dairy calves are removed from cow at birth to...
monorchid
hormones
feeding a high producing dairy cow
11. Failure to have one testis (gonad) to descend
oviducts
colostrum
monorchid
scrotum
12. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
testis (gonads)
Where livelihood is in agriculture
estrous
Dairy Cattle Gestation
13. Look for infection - split - and rupture of the penis
monorchid
eminal vesicles
Size of cow in relation to the amount of milk produced
penis and prepuce observation (BSE)
14. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
Sperm survival specs
uterus
feeding a high producing dairy cow
retractor muscles
15. 336 days
mare gestation
Lutinizing Hormone in females
semen evaluation (BSE)
monestrous
16. 1-3 days
age and castration
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
sow estrus
mare estrus cycle
17. What makes the milk flow through the mammary glands?
Blood
functions of progestrone
Sperm growth rate
mare estrus cycle
18. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
Reasons for gestation length being affected
Follical Stimulating in females
4 major reasons for culling dairy cows
Holstein Cow
19. Urinary calculi.
sow ovulation
sertoli cells
sow estrus cycle
kidney stones also called ________ ___________ can develop in the sigmoid flexure
20. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)
feeding a high producing dairy cow
Grading choice
behavioral signs of estrus
what has to happen for males for copulation to occur
21. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
behavioral signs of estrus
sperm cell
dairy cattle pregnancy check
Mares
22. 4-6 days
prostaglandin
mare estrus
Bull's fibro-elastic penis
mare ovulation
23. Front feet and head first. (except for hogs and dogs)
sperm cell
normal presentation of the fetus
prostate gland
Holstein Cow
24. Failure to have both testis (gonads) descend
dairy cattle pregnancy check
Grading choice
Follical Stimulating in males
cryptorchid
25. 16-20 hours
mare estrus cycle
cow estrus
sperm cell
eminal vesicles
26. 14-19 (17) days
ewe estrus cycle
dairy cattle pregnancy check
elastrator
castration
27. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
seasonally polyestrous
prostaglandin
dartos muscle
butterfat
28. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
dry-off time in dairy cattle
dry-off time in dairy cattle
Follical Stimulating in females
reason for seasonal breeding periods
29. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
burdizzo
testis (gonads)
ewe estrus cycle
ewe's estrous cycle
30. 283 days
Grading choice
penis proper
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
cow gestation
31. Way to know everything is alright with the breeding male
rectal palpation (BSE)
spermatogenesis
purpose of Breeding Soundness Exam (BSE) for males
organs used in spermatogenesis
32. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
testis (gonads)
effects of estrogen
ewe's estrous cycle
Mares
33. 19-23 (21) days
sow estrus cycle
mare gestation
sigmoid flexure
functions of progestrone
34. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
reasons for castration
ewe estrus cycle
Avg. bull specs
oviducts
35. Help to signal hormone levels which we need both in the brain right next to each other.
6-8 weeks
colostrum
sow estrus cycle
hypothalamus and pituitary gland
36. 26 hours after estrus begins
ewe ovulation
vulva
scrotal circumference (BSE)
age and castration
37. The more stressed out the male is - the less sperm he is going to produce
sperm cell
humans: stress level vs sperm
dry matter and water
visual evaluation (BSE)
38. What makes the milk flow through the mammary glands?
Blood
~1 month
Follical Stimulating in females
vagina
39. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells
things to check for in a breeding soundness exam (BSE)
oviducts
vagina
organs used in spermatogenesis
40. Days which have increasing daylight hours
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41. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.
Reasons for gestation length being affected
scrotum
van deferens
Holstein Cow
42. 19-23 (21) days
cow estrus cycle
penis and prepuce observation (BSE)
reason for seasonal breeding periods
dry-off time in dairy cattle
43. Male on one pin and female on other side
burdizzo
dartos muscle
purpose of Breeding Soundness Exam (BSE) for males
libido test (BSE)
44. (FSH) causes egg to mature in females
Follical Stimulating in females
libido test (BSE)
~1 month
Where livelihood is in agriculture
45. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
Dairy calves are removed from cow at birth to...
things to check for in a breeding soundness exam (BSE)
stag
dartos muscle
46. 4-6 days
Parturition
mare estrus
Hormones from both the fetus and the mom.
butterfat
47. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
ewe gestation
Where livelihood is in agriculture
6-8 weeks
Lutinizing Hormone in females
48. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.
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49. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
Mares
reasons for castration
age and castration
sow estrus
50. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
uterus
monestrous
elastrator
accessory sex glands